Gemstone



FIG. 1 is a perspective view from the top of a gemstone according to afirst embodiment of the present design;

FIG. 2 is a bottom view of the first embodiment;

FIG. 3 is a front view of the first embodiment;

FIG. 4 is a left side view of the first embodiment;

FIG. 5 is a top view of the first embodiment;

FIG. 6 is a right side view of the first embodiment;

FIG. 7 is a back view of the first embodiment;

FIG. 8 is a perspective view from the top of a gemstone according to asecond embodiment of the present design;

FIG. 9 is a bottom view of the second embodiment;

FIG. 10 is a front view of the second embodiment;

FIG. 11 is a left side view of the second embodiment;

FIG. 12 is a top view of the second embodiment;

FIG. 13 is a right side view of the second embodiment;

FIG. 14 is a back view of the second embodiment;

FIG. 15 is a perspective view from the top of a gemstone according to athird embodiment of the present design;

FIG. 16 is a bottom view of the third embodiment;

FIG. 17 is a front view of the third embodiment;

FIG. 18 is a left side view of the third embodiment;

FIG. 19 is a top view of the third embodiment;

FIG. 20 is a right side view of the third embodiment; and,

FIG. 21 is a back view of the third embodiment.

I claim the ornamental design for a gemstone, as shown and described.